Welcome to China Surfactant Detergent & Cosmetics, Today is

China Surfactant Detergent & Cosmetics ›› 2024, Vol. 54 ›› Issue (6): 663-668.doi: 10.3969/j.issn.2097-2806.2024.06.006

• Development and application • Previous Articles     Next Articles

Formula design and performance study of a long-term antibacterial laundry detergent

Mingxuan Zhang,Peipei Xu,Donghui Sui*()   

  1. Beijing Lvsan Technology Co., Ltd., Beijing 100094, China
  • Received:2023-07-13 Revised:2024-05-27 Online:2024-06-22 Published:2024-06-24
  • Contact: * E-mail: suidonghui@lvsan.com.

Abstract:

A laundry detergent with long-term antibacterial effect was obtained by comparing the performance of six different bactericides in the formula. According to Group Standard T/ZGXX0004—2022 “Evaluation Method for Long-term Antibacterial Effect of Daily Chemical Products”, the long-term antibacterial effects of six laundry detergents were tested. The test results showed that only silver ion and polyhexamethylene biguanide hydrochloride (PHMB) had a certain long-term antibacterial ability, and only PHMB could meet the requirements of the standard. By adjusting the amount of PHMB added, the long-term antibacterial effect, detergency and stability of the detergent were tested, and a non-ionic formula of long-term antibacterial laundry detergent was obtained. When the amount of PHMB added was 1.2%, the detergent had the long-term antibacterial performance required by the standard, and its detergency was good. When the amount of PHMB added was further increased to 2.0%, the laundry detergent could achieve good long-term antibacterial performance, and the detergency was significantly decreased but could still meet the requirements. In the high-and low-temperature tests, the appearance, physical and chemical indexes, detergency and long-term antibacterial performance had no significant change.

Key words: bactericide, long-term bacteriostatic efficacy, polyhexamethylene biguanide hydrochloride

CLC Number: 

  • TQ649